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目前有一些单位在(2t/h)低压小容量的工业锅炉上加装了过热器,这样做无论是经济性或安全性都是不合适的。其主要原因: 1.低压小容量的工业锅炉水处理设备都较简单,运行管理水平较差,给水质量低劣。而低压小容量的工业锅炉排污系统不完善,有的只有定期排污,因此炉水碱度普遍很高,炉水含盐量大大地超过允许极限值,锅炉蒸汽含湿量很高,蒸汽携带严重,过热器内壁严重地结有盐垢,过热器管壁传热恶化,,使过热器长期超温变形,锅炉被迫停炉,影响工业生
At present, some units install superheaters on low-pressure small-capacity industrial boilers (2t / h), which is not suitable in terms of economy or safety. The main reasons: 1. Low-pressure small-capacity industrial boiler water treatment equipment are relatively simple, poor operation and management, poor water quality. The low-pressure small-capacity industrial boiler sewage system is not perfect, and some are only regular sewage, so the boiler water is generally high alkalinity, furnace water salinity greatly exceeded the allowable limit, high steam boiler steam, steam carrying serious , The superheater wall has a serious salt scale, superheater tube wall heat deterioration, the super-heater over-temperature deformation, the boiler was forced to shutdown, affecting industrial hygiene